ul.question{
    list-style: none;
    padding-left: 0;
}
ul.question li{
    padding: 10px 0;
    overflow: hidden;
    border-bottom: 1px solid #f5f5f5;
}
.avatar-group{
    width: 38px;
    height: 100%;
    float: left;
}
.avatar-group .avatar{
    width: 38px;
    height: 38px;
    border-radius: 50%;
}
.question-group{
    float: left;
    width: 660px;
    padding-left: 10px;
}
.question-group .question-title a{
    color: #e4f;
    font-weight: bold;
}
.question-info{
    text-align: right;
}
.question-info span{
    padding: 0 10px;
}